package test;

import java.util.Scanner;

public class test1 {
    public static void main(String[] args) {
        Scanner scanner=new Scanner(System.in);
        float h=scanner.nextFloat();
        int n =scanner.nextInt();

        //write your code here......
        float sum=0;
        for(int i=0;i<n;i++){
            sum+=h;
            h/=2;
            sum+=h;

        }
        System.out.println(String.format("%.3f", h)+" "+String.format("%.3f", sum-h));
//        System.out.println(String.format("%.3f", sum-100));

        //输出格式为：System.out.println(String.format("%.3f", h)+" "+String.format("%.3f", sum));


    }
}
